Fire extinguisher



Jan. 17, 1933. I w R|HTER ET AL 1,894,325

FIRE EXTINGUISHER Filed July 1. 1950 ATTORN EY m ma Jan. 11, 1933- UNITED STATES PATENT OFFICE wmux mcnm m 2mm ran, or rum, FLORIDA I'IBE nxrmeursnm Application fled July 1,

Our invention relates to fire extinguishers, more particularly to fire extinguishers of the chemical ty and it consists in the constructions, comblnations and arrangements herein shown and described.

It is the object of our invention to provide a fire extinguisher of the chemical type that is well adapted to put out burning fuel tanks, buildings, storage and warehouses and the like by the use of suitable chemicals adapted for this purpose. a

A further object of our invention is to provide a fire extinguisher which is equipped with means for preventing inoperatives of the extinguisher from the 8.60111111118121011 of frost, ice, etc. at the outlets from which the chemical is sprayed, making the same especially eflicient for use in cold climates.

A further object of our invention is to provide a device of the type described WhlCh has few parts, is simple to manufacture and does not et out of order easily.

0t er objects and advantages will appear as the specification proceeds and the inventionwill be more particularly defined 1n the appended claim.

Our invention is illustrated in the accom-- panying drawing forming a part of th s application, in which: Figure 1 is a sectional view of our device;

Figure 2 is an elevational view of our device with parts thereof shown in section for the sake of illustration; Figure 3 is an elevational detail View of a 3:; portion of the device; and

Figure 4 is a sectional detail v1ew of the same portion of the device.

In this application of our invention we 1 show the same utilized as a fire extlnguisher for the extinction of the flame of a burnlng fuel storage tank 1. This fuel storage tank 1 could just as well be a house, warehouse or other object which it is desired to protect from fire.

Positioned at a distance from this ob ect which it is desired to protect from a fire we place the operating parts 20f my fire extinguisher, which operating parts are housed from the weather in a suitable housing 3 which as shown may be in the nature of a j 4 to the to be described.

1930. Serial No. 465,199.

penthouse. Adjacent this house we place a storage tank 4 which is adapted to store a chemical used in extinguishing fires such a chemical for instance, as carbon dioxide.

This tank 4 is suitably positioned on standards 5 and 6 for properly positioning the same while it is equip ed with a chemical inlet 7. at the top thereoi for the admission of chemicals thereinto.

For pumping the chemical from the tank oint 0 use, that is to such a p int as occupie by the tank 1, we provide a pump 8 connected to said tank 4 by pipe 9 and to the place of use by a system of piping soon This pump may be of any suitable construction, adapted to pump a fluid to put the same under pressure. It is, operated by a motor 9 which may be suitably coupled thereto by a coupling 10. The motor may have a variable speed and be adapted to be thrown into and out of operation by an operator by means not shown. The shaft 11 interconnecting the pump and the motor is supported in bearings 12 and 13 on standards in the housing.

For controlling the admission of chemicals to the pump for conduction of said chemicals to the point of use, the pipe 9 is equipped with a valve 14 which valve is readily accessible for operation by an operator.

For mixing water with the chemical as it comes from the tank 4 to form a solution of said chemical in the water when desired or for applying water to the fire when the use of the chemical is not desired or the same is exhausted, We provide a conduit 15 which is connected to a source of water supply to the pipe 9 between the valve 14 thereof and the ump 8. This pipe 15 is equipped with a valve 16 which may be similar to the valve 14 for controlling the rate of flow of the water therethrough.

For conducting the chemical or water or a solution of chemicals and water to the point of use for fire extinguishing purposes we provide an outlet pipe 17 connected to the outlet of the pump and adapted to convey the fluid from said pump to other pipes for use at the desired points. This pipe is closed at its outer extremity 18 and has positioned thereon a pluralit of branch pipes 19 which branch pipes lea to chemical e'ectors for ejecting the fluid onto fires at various points (not shown). These pipes 19 are equipped 3 with valves which may be similar to the valves 14 and 16 if desired. A description of one of the ejector systems at the point of use will sufiice for this application.

Connected to one of these pipes 19 below the ground preferably is a pipe 21. This pipe 21 is connected to the pipe 19 below the bend fi thereof. It slants upwardly from this connection and is provided with a suitable drain duct 22 at the connection for permitting an 15 operator to drain the pipe during cold weather. It will be noted that this p1pe 21 slants upwardly from the drain duct 22. A plug 22 at this point puts control of the drain in the hands of an operator.

29 At a desired position adjacent the point of guishing the 32 provided with a number of apertures 26 from which the chemical is ejected. Each of these apertures communicates with an ejector nozzle 27 which ejector nozzle is adapted to be screwed in the aperture as indicated at 28. The nozzles are each provided with a fiat mouth 29 for spraying the chemical on the fire. It will be noted that this nozzle is of reduced cross'section adjacent the mouth 29 thereof thus assuring forcible ejection of the fluid therefrom.

Tapped into the portion 23 of the pipe 21 by means of joint 30 is a circular pipe 31 rovidedwith apertures as in the case of the Eend 25 of the pipe portion 24 and equipped with nozzles for sprayin fuel of similar construction to the nozzles 2 This pipe extends aeeaaae eration for controlling thepum 8 and 01)- erates the desired valve 20, whic o rations send a stream of chemical through t e pipes,

through the ejector nozzles 27 and onto the fire as shown most. clearly in Figure 2. If it is desired to use water with the chemical he simply operates the valve 16 to the desired open position during the above described 0 eration which valve opening dilutes t e chemical with the water for spraying on the When the chemical in the tank 4 is exhausted and the operator desires to continue spraying water onto a fire he may open the valve 16 to a greater extent for securing a greater supply of water. A gage 35 positioned on the chemical tank 4 indicates to the operator the time at which the chemical is exhausted from the tank. i

It is thus seen that we have provided a fire extinguisher which is adapted to spray a chemlcal on a fire to extinguish the same or which is adapted to spray a chemical solu-.

tion on a fire as well as pure water when desired.

We claim! In a fire extinguishing apparatus for oil tanks and like structures comprising a source of liquid supply, a main associated with said supply, pump means for forcing said liquid throu b said main, said main having a circular ranch conduit adapted to encircle the tank in which it is wished to extinguish a fire and a conduit disposed above and over said tank, each of said conduits havin nozzles to permit discharge of fluid, said liquid main being inclined downwardly from said branch conduits toward said pump, a drain plug mounted in the low end of said main, I

and a valve in said main disposed between the outlet of said amp and said drain plug.

H :l L RICHTER. PER FRAY.

about the object which it is desired to protect and is secured thereto by any suitable fasteners such as the means indicated at 32.-

end of the nozzle 27, thus alfording eflicient protection for said nozzle.

From the foregoing description, the use and operation of my device is easily understood. In the event of a fire occurring in the fuel tank or object 1, the operator simply 5 operatesthe valve 14, sets the motor into op- 

